The unveiling was part of Mayor Harvey Johnson's final media briefing before Chokwe Lumumba takes office on Monday.

Three are 75-foot ladder trucks and four are pumper vehicles, which carry about 500 gallons of water, officials said.

"The Jackson Fire Department maintains a Class 3 fire rating, which is one of the lowest and best fire ratings in the state of Mississippi," Johnson said. "Getting these new fire vehicles in is extremely important in maintaining that rating."